So here's a fun game of math and frugality: I'm flying into Kansas City in March and driving to the middle of Missouri, about 145 miles. 2 days later, I'm heading back to KC to fly out. So, imagining ~300 miles of car travel, I'm trying to figure out if a $57 economy car rental - booked through Hotwire (Hyundai accent or similar), would be cheaper than a $108 airport shuttle round trip. I don't really *need* the car when i'm outside of Kansas City, as I will be with other folks who have cars, but it would be handy to have my own car (and the cab/uber/etc service is essentially non-existant in the town). And it makes it easier to return to the airport whenever I want to instead of by the shuttle's schedule. But it's not a must. An economy car probably gets 35-40 miles per gallon on the highway, and this would be 95% highway miles. So I imagine I'd have to fill up a decent amount of the tank, but gas is under $2, especially in Missouri, so tack that on to the cost, roughly ~$25 for gas, plus that $57, and you're at $82. Are there fees I'm not adding in? Hotwire says I would be "shuttled" to the car rental vendor from the airport, so I don't know if there would be an airport fee or not that isn't showing up on Hotwire. As for insurance, I have the Chase Sapphire Preferred, which has primary CDW. I declined the rental reimbursement insurance on my Geico insurance, which "pays toward expenses for a rental car while repairs are being completed as a result of a covered loss." So I'm not 100% sure if I need any more coverage from the rental company (which would nullify any CSP coverage if I did accept it). Even if I did, for 2 days, it seems it would be about $27. Which puts it at $109, basically the same price as taking the shuttle, but providing more flexibility. Sure, added risk of getting in an accident, but that's very unlikely. Any thoughts on my crazy thought out plan here?